The Wacker Neuson Choke Shaft Complete is a genuine OEM component designed for BS50-4s and BS60-4s series four-stroke vibratory rammers. As a direct OEM replacement, part is manufactured to the same specifications as the original, ensuring a drop-in fit with no guesswork. This choke shaft assembly covers an extensive range of BS50-4s and BS60-4s configurations, including standard, high-altitude, and EU-spec models equipped with 280mm / 11 in shoes. If your rammer is hard to start in cold conditions or the choke is sticking or unresponsive, replacing this assembly restores proper air-fuel control right away.
Key Features
- Genuine OEM Choke Control Integrity — Manufactured by Wacker Neuson to exact carburetor-interface tolerances, so the shaft seats, seals, and rotates the way the original did from day one.
- Bolt-On Carburetor Compatibility — Engineered to align directly with the carburetor body on BS50-4s and BS60-4s engines, so installation follows the same procedure as the original part removal.
- Broad BS-Series Coverage — Fits a wide range of BS50-4s and BS60-4s vibratory rammer variants, including standard, EU, high-altitude, and color-variant builds with 280mm / 11 in shoes.
- Restored Cold-Start Performance — A worn or binding choke shaft causes hard starting, rough warm-up, and inconsistent idle. A fresh assembly gives the operator full choke authority and predictable engine response from the first pull.
- Fuel System Safety Compliance — The choke shaft is a fuel-side carburetor component; using a properly spec'd OEM part maintains correct air-fuel enrichment and helps prevent over-rich conditions that can foul the spark plug or create unnecessary fuel vapor risk.
The choke shaft is the mechanical link between the choke lever and the choke plate inside the carburetor. When the operator closes the choke, this shaft rotates the butterfly plate to restrict incoming air, enriching the air-fuel mixture so the engine fires easily in cold or low-temperature conditions. As the engine warms, the shaft allows the choke plate to open fully, returning the engine to its normal running mixture. When the shaft wears, corrodes, or breaks, the choke plate loses positive control — leading to hard cold starts, inconsistent warm-up behavior, or a choke that won't fully open and causes the engine to run rich and lose power.
Part Details
| Part Number | 5200006943 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Choke Shaft Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4s | 5000620908, 5000620322, 5000620071, 5000620078, 5200000679, 5200000644, 5200000662, 5200000680 |
| BS60 -4s RMR,11 PL SHOE,HA 42 | BS60-4s | 5000620387, 5000620909, 5000620323, 5000620073, 5000620072, 5000620820, 5200000647, 5200000648, 5200000667, 5200000668, 5200000683, 5200000674, 5200000675, 5200011110, 5200011111 |
| Four-cycle Rammer,280mm/11in S hoe | BS60-4s EU | 5000620388, 5000620074, 5000620483, 5000620813, 5000620819, 5000620816, 5200003883, 5200004239 |
| Four-stroke Vibratory Rammer, 280mm/11in Shoe | BS50-4s EU | 5000620811 |
| 280/11in Shoe, Vibratory Ramme r | MS54 | 5200008223 |
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4HO EU | 5000620818 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
